The Municipal Firefighter’s Relief and Pension System, created, established and set forth in Chapter 382, Laws of 1955 (RCW Chapter 41.18), as amended by Chapter 69, Laws of 1959, and as amended by Chapter 255, Laws of 1961, and as amended by Chapter 45, Laws of the First Extra Session of 1965, is hereby established in the city. All of the provisions, regulations and details of said chapters are by this reference incorporated in this chapter. Any and all amendments of said chapters or of any sections thereof hereafter made shall likewise by this reference be constituted amendments of this chapter, without the necessity of further adoption by the legislative authority of the city. (Ord. 536 § 1, 1968).